Product Overview
Built for maximum safety and structural longevity, our Hot-Dipped Galvanized Steel Grating Stair Treads are precision-fabricated from superior-grade carbon and mild steel, then protected with a heavy-duty hot-dip galvanized coating. Designed specifically to withstand aggressive industrial environments, heavy pedestrian traffic, and extreme loads while complying with rigorous international standards.
Key Technical Specifications
|
Specification Item |
Industrial Standard / Options |
|
Product Name |
Hot-Dipped Galvanized Steel Grating Stair Treads |
|
Primary Material |
Mild Steel, Carbon Steel (Stainless Steel available upon request) |
|
Surface Finish |
Hot-Dip Galvanized (HDG) |
|
Galvanizing Standards |
ISO 1461, ASTM A123, BS729, AS1657 |
|
Zinc Coating Thickness |
70 to 100 micrometers (Customizable for severe environments) |
|
Bearing Bar Dimensions |
Height: 20mm, 25mm, 30mm, 32mm, 40mm, 50mm; Thickness: 3mm, 5mm |
|
Bearing Bar Pitch |
30mm, 40mm (Standard industrial spacing) |
|
Cross Bar Pitch |
50mm, 100mm |
|
Width and Length |
Fully Customized per Engineering CAD Drawings |
|
Nosing Options |
Plain, Checkered Plate Nosing, Serrated Anti-Slip Nosing |
|
End Plates |
Welded End Plates with Pre-Drilled Slotted and Round Holes |
|
Installation Method |
Bolted via fixing clips or Direct Site Welding |
|
Customization Services |
OEM and ODM Available for Global Engineering Projects |
Product Types and Design Options
We offer three core tread styles engineered for specific safety requirements and operational environments:
Plain Stair Treads
• Features: Smooth walking surface providing high load-bearing efficiency.
• Applications: Dry indoor environments, commercial buildings, and standard architectural stairways with moderate foot traffic.
Checkered Plate Nosing Stair Treads
• Features: Equipped with a high-visibility checkered plate on the leading edge to maximize step boundary awareness and prevent edge-tripping.
• Applications: Factories, warehouses, and public utility structures.
Serrated Anti-Slip Stair Treads
• Features: Serrated bearing bar surfaces designed to maximize traction under hazardous conditions.
• Applications: Wet, oily, icy, snowy, or muddy outdoor settings, including offshore oil platforms, chemical processing plants, and mining sites.
Core Product Advantages
Superior Corrosion Resistance: The heavy-duty hot-dip galvanized layer forms an uncompromised metallurgical bond with the base steel, preventing rust for decades in harsh weather and marine atmospheres.
High Load Capacity and Safety: Expertly engineered steel grating framework handles intense industrial loads and continuous pedestrian flow without structural deformation.
Low Lifecycle Cost: Outperforms traditional painted alternatives by drastically reducing maintenance frequency, repainting overhead, and replacement downtime.
Fast and Flexible Installation: Supplied with factory-welded end plates featuring pre-drilled holes, enabling swift bolt-on installation or direct site welding.
Manufacturing Workflow & Quality Control
Our product is produced through a strict 10-step manufacturing workflow and undergoes 7 rigorous product inspection checkpoints prior to dispatch:
Raw Material Inspection: Certified mill test certificates verified for carbon and mild steel.
Precision Steel Cutting: Automated cutting for accurate dimensions and clean edges.
Pressure Welding and Electroforging: Secures high joint strength between bearing and cross bars.
End Plate and Nosing Welding: Secure attachment of carrier plates and anti-slip nosing.
Surface Cleaning and Degreasing: Pre-galvanizing chemical baths to ensure optimal zinc adhesion.
Hot-Dip Galvanizing: Immersed in molten zinc strictly conforming to ISO 1461 and ASTM A123.
Comprehensive Final Testing: Includes dimensional checks, weld evaluation, visual finish inspection, zinc coating thickness verification (70 to 100 micrometers), and load-bearing performance validation.
Target Industrial Applications
Offshore Oil and Gas Platforms and Marine Engineering
Chemical and Petrochemical Processing Plants
Power Stations and Water Treatment Facilities
Mining, Metallurgy and Heavy Industrial Plants
Warehouses, Logistics Hubs and Steel Structure Buildings
Public Infrastructure, Bridges and Commercial Complexes
Export Packaging Specifications
To guarantee the product arrives at your job site undamaged, each shipment utilizes:
Heavy-duty Steel Pallets and Wooden Pallets
Protective Waterproof Plastic Film wrapping
Reinforced Steel Straps and Corner Protections
Flexible Shipping: Ocean Freight (FCL or LCL), Air Freight, Railway Transport, and express courier options for urgent project samples.
FAQ
Q: What international standards do your galvanized stair treads meet?
A: Our products comply with global benchmarks including ISO 1461, ASTM A123, BS729, and AS1657, ensuring seamless approval for international engineering projects.
Q: Can you manufacture custom sizes and load ratings based on our project drawings?
A: Yes. We specialize in OEM and ODM custom production. Simply send us your CAD drawings, structural dimensions, or loading specifications, and our engineering team will provide a tailored solution.
Q: What is the typical thickness of the hot-dip galvanized coating?
A: Our standard zinc coating thickness ranges securely between 70 to 100 micrometers, offering exceptional long-term outdoor weather protection.
Q: Do you provide installation accessories along with the stair treads?
A: Yes, we supply complete installation kits upon request, including saddle clips, bolts, nuts, and washers.
Q: What is your standard production lead time?
A: Standard orders typically require 10 to 20 days, depending on the total volume, customization requirements, and current factory production schedules.
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